School charges between $30 and $60 per hour depending on type of instruction (ground, flight, private, instrument, high performance, BFR, IPC, etc.).
Full time instructors get paid a base salary based on a four-tiered pay scale. Your salary goes up as your hours go up. There is a minimum number of flight/ground hrs. included in the base which also goes up with hours, but once we exceed that, we get hourly plus base. The hourly rate there varies again with the type of instruction, but ranges from $13 to $18 per hour.
Personally, I am on the third of the four tiers, and I am averaging between $1500 on a slow month, and $1900 on a good month. Unfortunately, lately it has been the former but things are picking up again.